Multirate Two-degree-of-freedom Deadbeat Control of Single-phase Inverter.

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  • 単相インバータのマルチレート2自由度デッドビート制御
  • タンソウ インバータ ノ マルチレート 2ジユウド デッドビート セイギョ

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In this paper, novel two-degree-of-freedom deadbeat control is proposed for a single-phase inverter. The conventional deadbeat system had too poor stability robustness because of the high-gain feedback controller. On the other hand, the proposed controller can assure the deadbeat command response by the multirate feedforward controller as well as the stability robustness which is guaranteed by the feedback controller with reasonable gain. Although single-rate systems could not guarantee zero tracking error for arbitrary reference signals, the proposed multirate control can achieve perfect tracking at every sampling point. Moreover, the dead-time compensation is introduced to reduce the voltage error. Finally, the simulations and experiments are performed to show the advantages of the proposed method.

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